Dux 26ECB5N User manual

Installation Manual
SBB816V
Rev. 05/19
To be installed and serviced only by an authorised person.
This appliance is not suitable for use as a pool heater.
The “authorised installing person” is responsible for:
1. Correct commissioning of this appliance
2. Ensure unit performs to the specification stated on the data label
3. Demonstrate operation of unit to customer before leaving
4. Hand these instructions to customer
This appliance must be installed in accordance with the manufacturer’s installation instructions all Local Building,
Water and Gas fitting regulations (AS/NZS 3500.4, AS/NZS 5601, AS/NZS 3000).
Failure to install this appliance in accordance with these installation instructions may void warranty.
In the interest of continued product improvement, Dux Manufacturing reserves the right to alter these
specifications without notice.
(e.g. 26ECB5N)
Condensing Models
26ECB5N
26ECB5L
26ECB6N
26ECB6L
21ECB5N
21ECB5L
21ECB6N
21ECB6L
Non Condensing Models
21ENB5N
21ENB5L
21ENB6N
21ENB6L
17ENB5N
17ENB5L
17ENB6N
17ENB6L
26ENA5N
26ENA5L
26ENA6N
26ENA6L
32END5N
32END5L
32END6N
32END6L
AU Service Department : 1300 365 115
NZ Service Department : 0800 729 389
For continued safety of this appliance it must be
installed, operated and maintained in accordance with
the manufacturer’s instructions.
WARNING
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Potential dangers from accidents during installation and use are divided into the following four categories.
Closely observe these warnings, they are critical to your safety.
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury.
Indicates a potentially hazardous situation which, if not avoided, may result in
property damage.
DANGER
WARNING
CAUTION
NOTICE
Requests to Installers
• In order to use the Water Heater safely, read this installation manual carefully, and follow the installation
instructions.
• Failures and damage caused by erroneous work or work not as instructed in this manual are not covered by
the warranty.
• Check that the installation was done properly in accordance with this Installation Manual upon completion.
• After completing installation, either place this Installation Manual in a plastic pouch and attach it to the
side of the Water Heater (or the inside of the pipe cover or recess box if applicable), or hand it to the
customer to retain for future reference. Also, be sure to fill in all of the required items on the warranty and
to hand the warranty to the customer along with the Owner’s Guide.
• The Water Heater must be commissioned including checking gas supply pressures at maximum demand.
• The operation of the Water Heater should be explained including normal operation and regular
maintenance.
CAUTION
If the information in this manual is not followed exactly, a fire or explosion may result causing property
damage, personal injury or death.
WARNING
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Contents
1. Before Installation 4
2. About the Water Heater 5
3. Choosing an Installation Location 16
4. Installation Clearances 17
5. Installation of the Water Heater 18
6. Connecting the Gas Supply 19
7. Connecting the Water Supply 24
8. Connecting the Condensate Drain 26
9. Connecting Electricity 27
10. Remote Controller 29
11. Trial Operation 34
12. Plumbing Applications 36
13. Installation of the Quick Connect Multi-System 37
14. Maintenance 38
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1. Before Installation
Check the Gas
• Check that the data label (left side of casing).
• Check that the gas supply pipe is sized for
32END5(6)N: 250 MJ/hr
32END5(6)L: 250MJ/hr
26ECB5(6)N: 175 MJ/hr
26ECB5(6)L: 185 MJ/hr
21ECB5(6)N: 145 MJ/hr
21ECB5(6)L: 149MJ/hr
26ENA5(6)N: 200 MJ/hr
26ENA5(6)L: 200 MJ/hr
21ENB5(6)N: 159 MJ/hr
21ENB5(6)L: 159 MJ/hr
17ENB5(6)N: 125.5 MJ/hr
17ENB5(6)L: 127 MJ/hr
• DO NOT OPERATE WITH ANY OTHER GAS
TYPE.
Check the Power
The power supply required is 230- 240 VAC, at
50 Hz.
Using the incorrect voltage may result in fire or
electric shock.
Warning labels
Located on the front and left hand side of the
casing-PLEASE READ THESE LABELS CAREFULLY!
WARNING
(For NG Gas)
xx
xxxxxxxx
xx
xx xx
xx
Do Not Use Appliance for Purposes Other Than
Those Specified
Do not use for other than increasing the
temperature of the water supply, as unexpected
accidents may occur as a result.
Check Water Supply Quality
If the water supply is hard, acidic or otherwise
impure, treat the water with approved methods
in order to ensure full warranty coverage.
See water quality statement on page 39.
Frost Protection
When installed, power to the appliance must
be kept switched on, otherwise the appliance
should be drained.
This prevents water freezing, and causing
damage to the Water Heater.
CAUTION
• This appliance is suitable for potable water
applications.
• Do not use this appliance if any part has been
underwater. Immediately call a qualified
service technician to inspect the appliance
and replace any part of the control system
and gas control which has been under water.
NOTICE
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2. About the Water Heater
Anchoring Screw (× 5)
Owner’s Guide,
Installation Manual (this document) (1 each)
Main Controller Set
[RCM1D]
Main Controller (× 1)
[ECM1D]
RC Cable (× 1)
[ECM-CABLE-10M]
RC Cable (× 1)
[ECM-CABLE-10M]
Quick Connect Cord
(2 m) (× 1)
[CF-0706377]
(For 32END series only)
Flue Diverter (× 1)
[CF-L18]
(For 26ENA series only)
The following accessories are included with the
Water Heater.
Check for any missing items before starting
installation.
2.1 Included Accessories
2.2 Optional Accessories
• The accessories listed below are not included
with the Water Heater, but may be necessary for
installation.
• Refer to page 29-33, for the selection of remote
controllers.
Bathroom Controller Set
[RCB1D]
Bathroom 2 Controller Set
[RCB2D]
Main Controller Set
[CF-KRC-9018C]
(For 32END series only)
Bathroom Controller
(× 1)
[ECB1D]
RC Cable (× 1)
[ECM-CABLE-10M]
Bathroom 2 Controller
(× 1)
[ECB2D]
RC Cable (× 1)
[ECM-CABLE-10M]
Main Controller (× 1)
[RC-9018C]
RC Cable (× 1)
[ECM-CABLE-10M]
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Pipe cover (× 1)
[CF-H33-K450]
(For other than 32END series) Pipe cover (× 1)
[CF-H32-K450]
(For 32END series only)
Item Specification
Model
Name
50°C model 26ECB5N 26ECB5L 21ECB5N 21ECB5L 21ENB5N 21ENB5L 17ENB5N 17ENB5L
55°C model 26ECB6N 26ECB6L 21ECB6N 21ECB6L 21ENB6N 21ENB6L 17ENB6N 17ENB6L
Type Installation Outdoor, Wall mounted
Air Supply / Exhaust Power Flue
Operating Pressure 200-1,000 kPa
Minimum Flow Rate 2.5 L/min
Dimensions (Height) × (Width) × (Depth) 520 mm × 350 mm × 170 mm
Weight 18 kg 17 kg 15 kg 14 kg
Water Holding Capacity 0.9 L 0.8 L 0.5 L 0.5 L
Connection
Sizes
Water Inlet R 3/4 (20 mm)
Hot Water Outlet R 3/4 (20 mm)
Gas Inlet R 3/4 (20 mm)
Condensate Drain R1/2 (15 mm) –
Power
Supply
Supply 230- 240 VAC (50 Hz)
Consumption
NG/ULPG 49.0 W / 60.0 W 43.0 W / 52.0 W 36.0 W / 49.0 W 31.0 W / 41.0 W
Freeze
Prevention 130 W 130 W 129 W 129 W
Burner Injector Size NG 1.4 mm / 2.4 mm 1.3 mm / 2.2 mm 1.2 mm / 2.0 mm 1.2 mm / 1.8 mm
ULPG 1.1 mm / 1.4 mm 0.9 mm / 1.4 mm 0.9 mm / 1.4 mm 0.9 mm / 1.4 mm
Accessories Anchoring Screws
• Specifications may be changed without prior notice.
• The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and water
temperature.
2.3 Specifications
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Item Specification
Model
Name
50°C model 26ENA5N 26ENA5L 32END5N 32END5L
55°C model 26ENA6N 26ENA6L 32END6N 32END6L
Type Installation Outdoor, Wall mounted
Air Supply / Exhaust Power Flue
Operating Pressure 200-1,000 kPa
Minimum Flow Rate 2.5 L/min 2.0 L/min
Dimensions (Height) × (Width) × (Depth) 600 mm × 350 mm × 170 mm 615 mm × 464 mm × 240 mm
Weight 19 kg 30 kg
Water Holding Capacity 0.9 L 1.2 L
Connection
Sizes
Water Inlet R 3/4 (20 mm)
Hot Water Outlet R 3/4 (20 mm)
Gas Inlet R 3/4 (20 mm)
Condensate Drain –
Power
Supply
Supply 230- 240 VAC (50 Hz)
Consumption
NG/ULPG 62.0 W / 64.0 W 76.0 W / 101.0 W
Freeze
Prevention 129 W 145 W
Burner Injector Size NG 2.3 mm 2.4 mm
ULPG 1.6 mm 1.5 mm
Accessories Anchoring Screws
Item Maximum Performance
Model
Name
50°C model 26ECB5N 26ECB5L 21ECB5N 21ECB5L 21ENB5N 21ENB5L 17ENB5N 17ENB5L
55°C model 26ECB6N 26ECB6L 21ECB6N 21ECB6L 21ENB6N 21ENB6L 17ENB6N 17ENB6L
Gas Consumption NG 175 MJ/hr 145 MJ/hr 159 MJ/hr 125.5 MJ/hr
ULPG 185 MJ/hr 149 MJ/hr 159 MJ/hr 127 MJ/hr
Maximum Hot Water Capacity (25°C Rise) 26 L/min 21 L/min 21 L/min 17 L/min
Performances
Item Maximum Performance
Model
Name
50°C model 26ENA5N 26ENA5L 32END5N 32END5L
55°C model 26ENA6N 26ENA6L 32END6N 32END6L
Gas Consumption NG 200 MJ/hr 250 MJ/hr
ULPG 200 MJ/hr 250 MJ/hr
Maximum Hot Water Capacity (25°C Rise) 26 L/min 32 L/min
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2.4 Dimensions
HEIGHT OF EACH FITTING
FROM BOTTOM OF CASE
DRAIN OUTLET 30
HOT WATER OUTLET 45
COLD WATER INLET58
GAS INLET 50
350
334
217 28
56
28
486 520
AIR INLET
FLUE EXHAUST
31
11
27
170
10
487
10 AIR INLET
NEUTRALIZER TANK DRAIN
AIR INLET
HOT WATER OUTLET
DRAIN OUTLET
GAS INLET
COLD WATER INLET
WIRING THROUGHWAY
S
97
40
30
102
252
296
45 87
96
21
DRAIN OUTLET(R1/2)
GAS INLET(R3/4)
WIRING THROUGHWAYS
HO
T WATER OUTLET(R3/4)
(VIEW FROM TOP)
COLD WATER INLET(R3/4)
90
120
85
50
10
60
120
54210
4-φ13
4-φ13
2-6×13 OBLONG HOLE
2-6.5×16.5 OBLONG HOLE
338
<Unit : mm>
21/26ECB series
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26ENA series
HEIGHT OF EACH FITTING
FROM BOTTOM OF CASE
HOT WATER OUTLET 44
COLD WATER INLET48
GAS INLET 49
HOT WATER OUTLET
GAS INLET
COLD WATER INLET
WIRING THROUGHWAYS
AIR INLET
FLUE EXHAUS
T
GAS INLET(R3/4)
WIRING THROUGHWAYS
HOT
WATER OUTLET(R3/4)
(VIEW FROM TOP)
COLD WATER INLET(R3/4)
<Unit : mm>
566
567
600
10 133
268
40
97
40
109
178
37 338
47
10 11
170
31
350
334
253
42 25
84
120
85
50
10
60
120
62210
4-φ13
4-φ13
2-6×13 OBLONG HOLE
3-6.5×16.5 OBLONG HOLE
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17/21ENB series
HEIGHT OF EACH FITTING
FROM BOTTOM OF CASE
HOT WATER OUTLET
COLD WATER INLET
GAS INLET
45
48
50
<Unit : mm>
486
520
350
334
178 73
42 57
FLUE EXHAUST
AIR INLET
COLD WATER INLET
HOT WATER OUTLET
WIRING THROUGHWAYS
GAS INLET
10
487
10
170
27
11
31
AIR INLET
AIR INLET
50
85
120
10542
60
120
10
90
3-6.5ᨴ16.5 OBLONG HOLE
2-6ᨴ13 OBLONG HOLE
4-φ13
4-φ13
40
97
40
80
37
296
139
252 GAS INLET(R3/4)
᧤VIEW FROM TOP᧥
HOT WATER
OUTLET(R3/4)
COLD WATER
INLET(R3/4)
WIRING
THROUGHWAYS
21ENB Series
17ENB Series
338
334
350
42 57
214 37
FLUE EXHAUST
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32END series
6 - 6 × 10
4 - 13
170
170
10 6240
464
450
450
257
244
119
361 GAS INLET (3/4”)
COLD WATER INLET (3/4”)
HOT WATER OUTLET (3/4”)
AIR INLET
STATUS DISPLAY
COLD WATER INLET
GAS INLET
WATER DRAIN VALVE
(PRESSURE RELIEF VALVE)
WATER DRAIN VALVE
WIRING THROUGHWAY
HOT WATER OUTLET
WATER DRAIN VALVE
(WATER FILTER)
WIRING THROUGHWAY
(VIEW FROM TOP) < Unit: mm >
60
60
40
665 615
31
2345
169
70
87
140
14
3
140
140
100
100
70
70
36
36 10
4 - 13
OBLONG HOLE
EXHAUST TERMINAL
6 - 6 × 10
OBLONG HOLE
HEIGHT OF EACH FITTINGS
FROM BOTTOM OF CASE
HOT WATER OUTLET
COLD WATER INLET
GAS INLET
44
55
51
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2.5 Component Details Example
21/26ECB series
Primary heat exchanger
Flame rod
Burner manifold & gas valv
e
Circuit board
Fan motor
Gas inlet
Secondary heat exchanger
Igniter
Main flow control valve
Hot water outlet
Cold water inlet
Neutralizer
Flue exhaust
Anti-frost heater
Thermal fuse
Power code
Inlet water filter
Drain outlet
Pressure relief valve
Neutralizer tank drain
Water flow sensor
Water inlet thermistor
Anti-frost heater
Water outlet thermistor
Anti-frost heater
Water level electrode
High limit switch
Ignition plug
Freeze protection thermostat
(e.g. 26ECB5N)
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26ENA series
(e.g. 26ENA5N)
Circuit board
Fan motor
Gas solenoid valve set
Ignition plug
Remote Control Connections
Burner manifold
Thermal fuse
Flue exhaust
Anti-frost heater
High limit switch
Earth leakage breaker
Inlet water filter
Flame rod
Cold water inlet
Power code
Hot water outlet Gas inlet
Anti-front heater
Main flow control valve
Water inlet thermistor
Water flow sensor
Igniter
Heat exchanger
Freeze protection thermostat
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17/21ENB series
(e.g. 21ENB5N)
Heat exchanger
Flame rod
Burner manifold & gas valve
Circuit board
Fan motor
Gas inlet
Igniter
Main flow control valve
Hot water outlet
Cold water inlet
Flue exhaust
Anti-frost heater
Thermal fuse
Power code
Pressure relief valve
Water flow sensor
Water inlet thermistor
Anti-frost heater
Water outlet thermistor
Anti-frost heater
High limit switch
Ignition plug
Freeze protection thermostat
Inlet water filter
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32END series
(e.g. 32END5N)
Flue Exhaust
Water Inlet Thermistor
Air Inlet Thermistor
Hot Water Outlet
Drain Outlet
Inlet Water Filter
Water Flow Sensor
Transformer
Thermistor-Burner
Flame Rod
Bypass Flow Control Valve
Water Outlet Thermistor
Heat Exchanger Thermistor
Heat Exchanger
High Limit Switch
Thermal Fuse
Ignition Plug
Burner
Burner Manifold & Gas Valve
Circuit Board
Igniter
Fan Motor
Status Display
Primary Gas Solenoid Valve
Gas Proportioning Valve
Anti-frost Heater
Anti-frost Heater
Anti-frost Heater
Anti-frost Heater
Pressure Relief Valve
Cold Water Inlet
Gas Inlet
Main Flow Control Valve
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3. Choosing an Installation Location
Consideration to the surroundings
• Do not install the Water Heater where the
exhaust will blow on outer walls, other walls
or material not resistant to heat. Also consider
the surrounding trees and animals.
The heat and moisture from the Water
Heater may cause discoloration of walls and
resinous materials, or corrosion of aluminium
materials.
• Do not locate the vent termination directed
towards a window or any other structure
which has glass or wired glass facing the
termination.
• Take care that noise and exhaust gas will not
affect neighbors.
• On combustible surfaces
(e.g. weatherboards), it
is not required to install
a fire proof back board.
• Install in a location
where the exhaust gas
flow will not be affected
by fans or range hoods.
Install according to regulations and manual
• The Water Heater must be installed according
to manual.
• Before installing, make sure that the vent
termination will have the proper clearances
according to AS/NZS 5601, or your local
authority.
CAUTION
NOT
CORRECT
Do not install in the following places
• A location where it is not free from obstacles
and stagnant air.
• Near staircases or emergency exits.
CAUTION
• This Water Heater is for outdoor installation
only. Do not install indoors.
• Do not enclose the termination with
corrugated metal or other materials.
This will cause carbon monoxide poisoning
and a potential fire hazard.
DANGER
Locate the appliance in an area where water
leakage from the unit or connections will not
result in damage to the area adjacent to the
appliance or to the lower floors of the structure.
When such locations cannot be avoided, it
is recommended that a suitable drain pan,
adequately drained, be installed under the
appliance. The pan must not restrict combustion
air flow.
NOTICE
• Avoid places where fires are common, such as
those where petrol, benzene and adhesives
are handled, or places in which corrosive
gases (ammonia, chlorine, sulfur, ethylene
compounds, acids) are present.
If you do not follow the above, a fire or
explosion may result causing property
damage, personal injury or death.
• Avoid installation in places where dust or
debris will accumulate. Dust may block the
air-supply opening, causing the performance
of the device fan to drop and incomplete
combustion to occur as a result.
• Avoid installation in places where special
chemical agents (e.g. hair spray or spray
detergent) are used.
Ignition failures and malfunctions may occur
as a result.
• Do not install this Water Heater in a mobile
home, recreational vehicle or on a boat as this
may be a Carbon Monoxide Poisoning Hazard.
WARNING
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4. Installation Clearances
Before installing, check for the following:
The location of the flue terminal must comply with the clearances shown on this page. If you are unsure
about clearances not indicated here, in general refer to AS/NZS 5601, or your local authority. In Western
Australia refer to the WA Office of Energy rules and regulations.
Flue outlet must be free from any combustible material.
WARNING
Directionof
discharge
See Note1
SeeNote1
Openinginto
abuilding
T
T
T
T
T
T
C
M
d
d
e
e
h
j
j
j
n
b
f
a
h
P
Z
k
k
g
g
I
T
Door
I = Mechanical air inlet
M = Gas meter
P = Electricity meter or fuse box
T = Flue terminal
Z = Fan-assisted appliance only
Shading indicates prohibit
ed
area for flue terminals
AS/NZS 5601.1:2013
FIGURE 6.2 (in part)
LOCATION OF FLUE TERMINALS OF BALANCED FLUE, ROOM-SEALED, FAN-ASSISTED OR OUTDOOR APPLIANCES
CLEARANCES FOR FLUE TERMINAL (front of heater)
* Unless appliance is certified for closer
installation.
† Prohibited area below electricity meter
or fuse box extends to ground level.
NOTES:
1 Where dimensions c, j or k cannot
be achieved an equivalent horizontal
distance measured diagonally from
the nearest discharge point of the
terminal to the opening may be
deemed by the Technical Regulator
to comply.
2 See Clause 6.9.4 for restrictions on a
flue terminal under a covered area.
3 See Figure J3 for clearances required
from a flue terminal to an LP Gas
cylinder. A flue terminal is considered
to be a source of ignition.
4 For appliances not addressed above
acceptance should be obtained from
the Technical Regulator.
5 Minimum clearances d and e also
apply to any combustion air intake
openings of appliances.
Ref. Item
Minimum clearances
mm
Fan assisted
a Below eaves, balconies and other projections:
Appliances up to 50 MJ/h input 200
Appliances over 50 MJ/h input 300
b From the ground, above a balcony or other surface * 300
c From a return wall or external corner * 300
d From a gas meter (M) (see Note 5)
(see Clause 5.11.5.9 for vent terminal location of regulator)
(see Table 6.7 for New Zealand requirements)
1000
e From an electricity meter or fuse box (P) † (see Note 5) 500
f From a drain pipe or soil pipe 75
g Horizontally from any building structure * or obstruction facing a terminal 500
h From any other flue terminal , cowl, or combustion air intake * 300
j Horizontally from an openable window, door, non-mechanical air inlet, or any other opening into
a building with the exception of sub-floor ventilation:
Appliances up to 150 MJ/h input* 300
Appliances over 150 MJ/h input up to 200 MJ/h input* 300
Appliances over 200 MJ/h input up to 250 MJ/h input* 500
Appliances over 250 MJ/h input* 1500
All fan-assisted flue appliances, in the direction of discharge 1500
k From a mechanical air inlet, including a spa blower 1000
n Vertically below an openable window, non-mechanical air inlet, or any other opening into a
building with the exception of sub-floor ventilation:
Space heaters up to 50 MJ/h input 150
Other appliances up to 50 MJ/h input 500
Appliances over 50 MJ/h input and up to 150 MJ/h input 1000
Appliances over 150 MJ/h input 1500
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Installation Manual
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5. Installation of the Water Heater
Securing the Water Heater to the wall
• Protect your hands with gloves and take
caution to not inflict injury.
• Be careful not to hit electrical wiring, gas, or
water piping while drilling holes.
CAUTION
• Installation must conform with all local
building, water or Gas Regulations or AS/NZS
5601.
• The weight of the appliance will be applied
to the wall. If the strength of the wall is not
sufficient, reinforcement must be done to
prevent the transfer of vibration.
• Install the appliance on a vertical wall and
ensure that it is level.
• Insure no additional pressure is applied to the
pipework.
NOTICE
7. Make sure the Water Heater is installed securely
so that it will not fall or move due to vibrations
or earthquakes.
1. Drill a single screw hole, making sure to hit a
stud.
2. Insert and tighten the screw and hang the Water
Heater by the upper wall mounting bracket.
3. Determine the positions for the remaining four
screws (two for the top bracket and two for the
bottom), and remove the Water Heater.
Locaon of Screw Hole
Moun
ng Bracket
(upper)
Locaon of Screw Hole
4. Drill holes for the remaining four screws.
5. Hang the Water Heater again by the first screw,
and then insert and tighten the remaining four
screws.
6. Take waterproofing measures so that water does
not enter the building from screws mounting
the device.
Anchoring Scr
ew
Do not drop or apply unnecessary force to the
appliance when installing. Internal parts may be
damaged and may become highly dangerous.
WARNING
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6. Connecting the Gas Supply
Follow the instructions from the gas supplier.
Gas Type
The gas type indicated on the Water Heater’s rating
plate (NG or ULPG) must match the type of gas
being supplied to the Water Heater.
Pressure Test
The appliance and its gas connections must be leak
tested before placing the appliance in operation.
If test pressures are in excess of 1/2 psi (3.5 kPa),
the appliance must be completely disconnected
from the gas supply piping system during the test
process.
Measuring Gas Pressure
• In order to check the gas supply pressure to the
Water Heater, a tap is provided on the gas inlet.
1. Remove the hex head phillips
screw from the tap.
2. Connect a manometer using a
silicon tube.
• In order to check the gas manifold pressure
on the gas valve inside the Water Heater. The
pressure can be checked by removing the hex
head phillips screw and connecting a manometer
with a silicon tube.
Gas Meter
Select a gas meter capable of supplying the entire
MJ/h demand of all gas appliances in the building.
Gas Connection
1. Fit a union to the Water Heater gas inlet for easy
connection and removal. The thread diameter is
20 mm.
2. Fit an suitably approved isolating gas cock in the
supply pipe adjacent to the Water Heater gas
connection.
3. Ensure that the supply pipe and the gas pressure
regulator (ULPG or Natural Gas) has sufficient
flow capacity for this and other appliances
connected to the fitting pipe.
4. For ULPG appliances ensure that gas cylinders
are of sufficient size. The Water Heater alone
will require 2 × 45 Kg capacity cylinders.
5. Before connecting the appliance to the gas
service, purge any debris or air from the gas
service.
6. Check all joints for leaks with an approved leak
tester after connection.
Pressure
Ensure measurement is taken when the appliance is
operating at maximum load.
NOTE THIS DOES NOT INDICATE THE SIZE
OF THE GAS SUPPLY.
The inlet gas pressure must be within the range
specified.
This is for the purposes of input adjustment.
WARNING
Gas pressures below the required minimum
pressure may result in ignition failure, personal
injury or death.
WARNING
Pipe Sizing
• In order to choose the proper size for the gas
pipe, consult local codes and/or the AS/NZS 5601.
• Size the gas pipe according to total MJ/h demand
of the building and length from the meter or
regulator so that the following supply pressures
are available even at maximum demand refer AS/
NZS 5601:
Supply Pressure
Natural Gas ULPG Gas
Min 1.13 kPa 2.75 kPa
Max 3.00 kPa 3.50 kPa
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Installation Manual
20
NOTE • Ensure that the gas pipe size
is correct. If undersized the
appliance will not operate
correctly.
• SERVICE CALLS ARE CHARGEABLE
FOR UNITS WITH INCORRECT
PIPE SIZES OR BLOCKED GAS OR
WATER FILTERS.
Flexible Connectors
Flexible gas pipes are not recommended unless the
minimum inside diameter is ¾ in. or greater and
the rated capacity of the connector is equal to or
greater than the MJ/h demand of the Water Heater.
Reference Tools & Sample Calculations
The tables and samples below are for reference
only. The professional sizing and installing the
gas pipe should always run the appropriate
calculations before all installations.
NOTICE
[Calculation Example]
A partial set of sizing tables are printed on page
22-23.
1. Draw a sketch of a piping system.
Enter the system information.
(e.g.)
Point of
delivery
Outlet 1
clothes dryer
80 MJ/h
Outlet 2
range/oven unit
50 MJ/h
Outlet 4
furnace 100 MJ/h
Outlet 3
water heater
150 MJ/h
2. • Determine the gas type used and supply gas
Pressure, and enter it.
• Determine the piping material and enter it to
the below.
• Select the appropriate pipe sizing table from
page 22-23 and enter it to the below.
3. • On the sketch, mark the delivery point (meter
or regulator) as “a” and the first tee as “b”. Let
the section “a-b” be the first section.
• Section from the first tee “b” to the second
tee “c” set “b-c” and set the section to the
next tee in the same way.
Gas type: Natural
Pressure drop: 0.12 kPa
Table used: 1
Piping material: Copper
Supply gas pressure: 1.13
(e.g.)
Gas type:
Pressure drop:
Table used:
Piping material:
Supply gas pressure:
(e.g.)
2 m
2 m
4 m
8 m
8 m 4 m5m
5 m
2 m
Point of
delivery
Outlet 1
clothes dryer
80 MJ/h
Outlet 2
range/oven unit
50 MJ/h
Outlet 4
furnace 100 MJ/h
Outlet 3
water heater
150 MJ/h
a
e
cb
f
h
g
d
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